Compaq mv540 free download

File name Compaq MV540 CQ550F CO1075 adjustment.pdf

GENERAL INFORMATION All adjustment are thoroughly checked and corrected 8) Adjust V-POSITION as arrow keys to be the best when the monitor leaves the factory, but sometimes condition. several adjustments may be required. 9) Adjust H-SIZE as arrow keys to 265±1mm. Adjustment should be following procedure and after 10) Adjust H-POSITION as arrow keys to be the best warming up for a minimum of 30 minutes. condition. 11) Adjust S-PCC (Side-Pincushion) as arrow keys to be · Alignment appliances and tools. the best condition. - IBM compatible PC. 12) Adjust TRAPEZOID as arrow keys to be the best - Programmable Signal Generator. condition. (eg. VG-819 made by Astrodesign Co.) 13) Adjust parallelogram as arrow keys to be the best - EPROM or EEPROM with saved each mode data. condition. - Alignment Adaptor and Software. 14) Save of the system. - Digital Voltmeter. 15) PRESET EXIT Y (Yes) command. - White Balance Meter. - Luminance Meter. 4. Adjustment for White Balance and Luminance. - High-voltage Meter. 1) Set the White Balance Meter. 2) Press the DEGAUSS on the OSD menu for AUTOMATIC AND MANUAL DEGAUSSING demagnetization of the CDT. The degaussing coil is mounted around the CDT so that 3) COLOR ADJ. LUMINANCE command of the automatic degaussing when turn on the monitor. But a alignment program. monitor is moved or faced in a different direction, become 4) Display color 0,0 pattern at Mode 8. poor color purity cause of CDT magnetized, then press 5) COLOR ADJ. BIAS ADJ. command of the DEGAUSS on the OSD menu. alignment program. 6) Check whether green color or not at R-BIAS to 0 and ADJUSTMENT PROCEDURE & METHOD B-BIAS to 20 position and G-BIAS to 150(96) - Install the cable for adjustment such as Figure 1and run position. Set Sub-Brightness to 80(Decimal). the alignment program on the DOS for IBM compatible PC. 7) Adjust FBT (Screen) volume to 1.0± 0.30FL of the - Set external Brightness and Contrast volume to max position. raster luminance. If it's not green color, the monitor must be repaired. 1. Adjustment for B+ Voltage.

File name Compaq MV540 CQ550F CO1075 blk.pdf

[ OSD Control ] H-Sync Signal V-Sync Si gnal CONTRAST BRIGHTNESS H / V POSITION H / V SIZE SPCC TRAPEZOID DEGAUSS PA RALLELOGRAM RECALL Exit 5V SCL / SDA H/V Sync Signal PWM Control Signal PC Jack Speaker Jack Degaussing Circuit Microphone E2PROM (IC402) H/V Sync Processor ( IC701 ) TDA4841 I2 C 12V I 2C DATA (SDA) I 2C 5V MICOM (IC401) 5V OSD IC (IC301) 80V I2 C R/G/B Contrast CLOCK(SCL) Input Signal R G B VIDEO Pre A mp (IC302) 12V 80V Heater ( 6.3V ) VIDEO Main A mp (IC303) G2 G1 H.V DY CDT CUT OFF Circuit (IC304) R/G/B Bias 12V Focus I2 C X-RAY Protection Circuit 15V Vertical Output ( IC601) TDA4866J Vertical Blanking Brightness Control Circuit - 120V 12V I2 C H/V Sync Signal 40V 15V 80V Main Trans (T901) FBT ( T701 ) H Deflection ( Q706) B+ 15V H-Linearity Circuit Auto Beam Limit Circuit 50V D- Drive Degaussing Coil Voltage feedback Line Filter 15V 6.3V Voltage feedback Main Power Control (IC901) DC/DC Converter B-Drive 50V Input Voltage 100~240VA C (50/60Hz) Sub Power Control (IC902) 12V Sub Trans (T902) Voltage feedback D/D Feed Back 5.0V Energy Saving Control Circuit Regulation Circuit DESCRIPTION OF BLOCK DIAGRAM 1. SMPS(Switching Mode Power Supply) When you turn on the power switch, the operating procedure is as follows: 1) The AC line voltage is rectified by the bridge diodes D900 and C908 2) The control IC(IC901, IC902) starts switching and generates switching pulses in the primary turns of the SMPS transformer (T901, T902) 3) The switching pulses of the primary turns induce the secondary pulse of the transformer by the turn ratio. These pulses are rectified by each diode (D971, D961, D951 and D941, D922, D923) 4) Each rectified DC voltage (80V, 50V, 15V, 6.3V and 12V, 5V) is supplied to the main circuit. 2. Over Voltage Protection Circuit When the input voltage of IC901 Vin(pin 7) is more than Spec Voltage , all the secondary voltages of the SMPS transformer (T901) down to low value. 3. Display Power Management Circuit 1) OFF mode When no input of horizontal and vertical sync, Q903 is turned on and all the secondary voltages of the SMPS transformer (T901) down to low value. Then input power consumption is below 5 watts 4. X-ray Protection Circuit If the high voltage of the FBT reaches up to 29KV IN an abnormal case, Q807 operates and IC401 pin 41 came to low level, then IC401 control IC701 to stop Horizontal drive pulse and stop Horizontal deflection. 5. Microprocessor Control Circuit. 1) Horizontal and Vertical sync signals are supplied to the microprocessor (IC401). 2) Microprocessor(IC401) discriminates the operating mode from the sync. polarity and resolution. 3) After microprocessor reads these adjusted mode data stored at EEPROM, it controls operating mode data through IIC. 4) Users can control screen condition by the SELECT, BACKWARD, FORWARD and LEFT buttons. 6. D/D Convert Circuit. To obtain constant high voltage, this circuit supplies controlled DC voltage for FBT and Horizontal deflection circuit ac

File name Compaq MV540 CQ550F CO1075 case.pdf

1. SPEAKER REMOVAL 1) Upward the a in arrow(a) and pulling the Speaker in arrow(b). 2) Remove Speaker from the Monitor. 2. TILT/SWIVEL REMOVAL 1) Set the monitor face downward. 2) Pressing the latch (a), carefully remove the Tilt/Swivel by pulling it upward. (a) (a) (a) (b) (b) MV540 3. TOTAL CHASSIS ASSEMBLY REMOVAL 1) Remove connector (a) from the DY Assembly screw. 2) Carefully separate the CDT Board Assembly from the CDT neck. 3) Discharge the remaining static electricity by shorting between the Anode Cap and the CDT ground. 4) Disconnect the Anode Cap from the CDT. 5) Disconnect three connects (c). 6) Disconnect P902 (Degaussing pin), P701(DY pin), and P405, P202 from the Main PCB. 7) Remove two screws (b). 8) Remove the Total Chassis Assembly from the Cabinet. (a) Anode Cap (c) DY ASSEMBLY SCREW P701 (DY PIN) P202 MIC (c) P701 P902 (DEGAUSSING COIL) (b) P202 P902 P405 P402 P201 (Control PCB) (b) 4. VIDEO PCB ASSEMBLY REMOVAL 1) Disconnect P301, P302, G2 from the Video PCB. 2) Disconnect three connects (a). 3) Remove the screws (b). 3) Remove the Video PCB Assembly. 6. BOTTOM BRACKET REMOVAL 1) Remove three Holders (a). 2) Remove four screws (b). 3) Remove the Bottom Bracket. (b) (b) (a) P302 G2 P301 (b) (b) (a) (b) (a) (a) (a) (a) 5. CONTROL PCB & MICRO PHONE ASSEMBLY REMOVAL 1) Remove three screws (a). 2) Remove the Control PCB Assembly from the Front Cabinet. 3) Remove two screws (b) 4) Remove the Micro phone Assembly (b) from the Front Cabinet. (b) (a) (a) (a) - 11 -

File name Compaq MV540 CQ550F CO1075 control.pdf

CONTROL LOCATIONS VR901: B Adjustment + (50V Line)

File name Compaq MV540 CQ550F CO1075 exploded view.pdf

EXPLODED VIEW 3 15 5 Ref. No. 1 2 3 Part No. 3091TKB040B 2423GB0A8AX 3809TKB023B 3043TKK082B 339-002D 6140TC3005A 6868T15005A 6174Z-1035A 6200TJB001K 6871TST246B 4950TKS185B 4930TKK031C 4810TKK150A 4810TKK151A 4810TKK175A 332-122C 6401TZZ022A 6852TAZ006E 6852TDZ002A 6866TA9025J 6513TCA002A 4950TKK334A 3313T15075B 6871TVT240B 6871TMT255B EXPLODED VIEW PARTS LIST Description CABINET ASSEMBLY, CQ550F COMPAQ 3090TKB035A LGESP,LOCAL CDT SET, M36LBL803X 31RLLA BACK COVER ASSEMBLY, CQ550F 3808TKB027A LGESP,LOCAL TILT SWIVEL ASSEMBLY, CQ550F T059,B052,K024 LGESP,LOCAL SCREW ASSY, PHP+5*30(FZMY)+GW18 COIL,DEGAUSSING, 75D-437 GET D-COIL,0.4MM*70T,L870,8.4 OHM,15" CDT EARTH, CQ550F TIN WIRE BRAID(96) FBT, (FLY BACK TRANSFORMER), FMMTC81 -M1035A (LEE HYOUNG YOON) FILTER(CIRC), EMC, 02MD4P DELTA BK CG773F PWB(PCB) ASSEMBLY,SUB, CQ550F CONTROL TOTAL COMPAQ CA-100 METAL SHIELD BOTTOM, (COMPAQ,CKD,LGESP) HOLDER, PCB FIX SIDE BRACKET, CN771C SUPPORTER BOT.(RIGHT) BRACKET, CN771C SUPPORTER BOT.(LEFT) BRACKET, CQ550F HOLDER ,PCB SCREW, TP1+M4*16(FZMW1) SPEAKER ASSEMBLY, CQ550F/EQ770F COMPAQ(231112-001) SPK ASSY(L/R) CORD,A/V, AUDIO UL 2851 #28-2C 1500MM QUARTZ KSD CORD,LINE, DH-20100D KSD 1000 QUARTZ COMPAQ CABLE, D-SUB, UL 2990-9C(7.5)AT 1560MM COMPAQ EQ770F-DM MICRO PHONE ASSEMBLY, CQ550F/EQ770F MW/M DM1530-PDI WITH CORE METAL.FIX(MICRO PHONE, COMPAQ) MAIN TOTAL ASSEMBLY, CQ550F COMPAQ CA-100 PWB(PCB)ASSEMBLY, VIDEO, CQ550F VIDEO TOTAL COMPAQ CA-100 PWB(PCB)ASSEMBLY, MAIN, CQ550F KQCQMS COMPAQ CA-100 TOTAL 7 B 8 4 5 6 6 19 9 7 8 9 10 2 11 12 13-1 C 21 20 13-2 14 15 16 A 4 10 12 12 11 17 14 1 12 18 17 18 19 20 13-2 16 21 A B C 13-1

File name Compaq MV540 CQ550F CO1075 scheme.pdf

80V 0V 1B 2.5V 0V 1B 10ms 8.7V 0V 1B 1055V 0V 280V 52V 0V 1B

File name Compaq MV540 CQ550F CO1075 spec.pdf

SPECIFICATIONS 1. PICTURE TUBE Size DefIection Angle Neck Diameter Diagonal Inch Dot Pitch Face Treatment 3-2. Power Consumption : 15 inch (Flat Square Tube) : 90° : 29.1 mm : 14.0 mm : 0.28 mm : Internal Anti-glare MODE NORMAL OFF POWER CONSUMPTION LED COLOR GREEN AMBER less than 80 W less than 5 W 2. SIGNAL 2-1. Horizontal & Vertical Sync 1) Input Voltage Level : Low=0~1.2V, High=2.5~5.5V 2) Sync Polarity : Positive or Negative 2-2. Video Input Signal 1) Voltage Level a) Color 0, 0 b) Color 7, 0 c) Color 15, 0 2) Input Impedance 3) Video Color 4) Signal Format 4. DISPLAY AREA 4-1. Active Video Area : · Max Image Size - 285 x 215 mm (11.22" x 8.46") · Preset Image Size - 265 x 199 mm (10.43" x 7.83") 4-2. Display Color : Full Colors 4-3. Display Resolution : 1024 x 768 / 60Hz (Non-Interlace) 4-4. Video Bandwidth : 65MHz 5. ENVIRONMENT 5-1. Operating Temperature: 10°C ~ 40°C (50°F ~ 104°F) (Ambient) 5-2. Relative Humidity : 5%~ 95%(Non-operating) 10%~ 90%(operating) 5-3. Altitude : 3,658 m 6. DIMENSIONS (with out TILT/SWIVEL) Width : 368 mm (14.48 inch) Depth : 400 mm (15.74 inch) Height : 338 mm (13.30 inch) : 0 ~ 0.7 Vp-p : 0 Vp-p : 0.467 Vp-p : 0.7 Vp-p : 75 : RGB Analog : Refer to the Timing Chart 2-3. Signal Connector 15-pin (D-SUB/3 RAW) 2-4. Scanning Frequency Horizontal Vertical : 30 ~ 54 kHz : 50 ~ 120 Hz 7. WEIGHT (with TILT/SWIVEL) Net Weight : 13 kg (28.66 lbs.) Gross Weight : 16 kg (35.27 lbs.) 3. POWER SUPPLY 3-1. Power Range AC 100~240V, 50/60Hz, 1.5A Max.

File name Compaq MV540 CQ550F CO1075 timing.pdf

TIMING CHART VIDEO B A C E D F SYNC FACTORY PRESET MODE MODE MARK H O R I Z O N T A L MODE 1 + MODE 2 -- 31.469 31.778 25.422 6.356 0.636 3.813 1.907 -- 59.940 16.683 15.253 1.430 0.318 0.064 1.048 640 x 480 60Hz Yes MODE 3 -- 37.500 26.670 20.320 6.350 0.510 2.030 3.810 -- 74.990 13.335 12.802 0.533 0.026 0.080 0.427 640 x 480 75Hz Yes MODE 4 -- 43.269 23.112 17.778 5.334 1.556 1.556 2.222 -- 85.008 11.764 11.093 0.670 0.023 0.069 0.578 640 x 480 85Hz Yes MODE 5 -- 31.470 31.778 25.422 6.356 0.636 3.813 1.907 + 70.080 14.269 12.711 1.558 0.414 0.064 1.080 720 x 400 70Hz Yes MODE 6 + 37.879 26.400 20.000 6.400 1.000 3.200 2.200 + 60.316 16.579 15.840 0.739 0.026 0.106 0.607 800 x 600 60Hz Yes MODE7 + 46.880 21.330 16.160 5.170 0.320 1.620 3.230 + 75.010 13.331 12.798 0.533 0.021 0.064 0.448 800 x 600 75Hz Yes MODE 8 + 53.674 18.631 14.222 4.409 0.569 1.138 2.702 + 85.061 11.756 11.178 0.578 0.019 0.056 0.503 800 x 600 85Hz Yes MODE 9 -- 48.363 20.677 15.754 4.923 0.369 2.092 2.462 -- 60.004 16.666 15.880 0.786 0.062 0.124 0.600 1024 x 768 60Hz Yes Sync Polarity Frequency Total Period Video Active Time Blanking Time Front Porch Sync Duration Back Porch Sync Polarity kHz µs µs µs µs µs µs E A B C D F 31.468 31.778 25.422 6.356 0.636 3.813 1.907 -- V E R T I C A L Frequency Total Period Video Active Time Blanking Time Front Porch Sync Duration Back Porch Hz ms ms ms ms ms ms E A B C D F 70.090 14.268 11.122 3.146 1.207 0.064 1.875 640 x 350 70Hz Yes Resolution Recall

File name Compaq MV540 CQ550F CO1075 trouble shooting.pdf

1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK FUSE OK? (F901) YES NO TROUBLE IN FUSE (F901) CHECK C908 VOLTAGE? (AC120V: 160VDC, AC220V: 304VDC) NO TROUBLE IN D900 YES CHECK IC901 PIN 6 WAVEFORM (SQUARE WAVE COMES OUT?) NO TROUBLE IN IC901 YES CHECK D941, D951, D961, D971 VOLTAGE? NO TROUBLE IN D941, D951, D961, D971 YES TROUBLE IN PC901, PC902, IC902, IC904, ZD902, D921, D923, Q903 2. NO CHARACTER NO CHARACTER CHECK IC302 PIN 9 (5V) ? YES NO TROUBLE IN P302 5V LINE CHECK IC302 PIN 5, 6, 7 ? NO TROUBLE IN PC SIGNAL, P301 SIGNAL CABLE YES CHECK IC302 PIN 18, 19, 20 ? NO TROUBLE IN IC302 YES CHECK IC303 PIN 4 (80V) PIN 8 (12V) ? NO TROUBLE IN P302 12V LINE/ 80V LINE YES CHECK IC303 PIN 1, 2, 3 ? NO TROUBLE IN IC303 YES CHECK R, G, B CATHODE VOLTAGE? YES TROUBLE IN IC304 / CRT SOCKET TROUBLE IN R341~R343, R331~R333, L311~L313, D307~D315 NO 3. NO RASTER NO VIDEO (POWER INDICATOR ON) CHECK POWER INDICATOR GREEN or ORANGE? AMBER DPM OFF MODE (NO H and/or V SYNC) GREEN CHECK D712 ANODE (-160V)? NO TROUBLE IN D712 YES CHECK G1 VOLTAGE? (-45 ~ -55V) NO TROUBLE IN Q704 YES CHECK CDT HEAT VOLTAGE? (6.3V) NO TROUBLE IN 6.3V LINE YES TROUBLE IN CDT 4. NO HORIZONTAL DEFLECTION NO H-DEFLECTION (ONE VERTICAL LINE) CHECK Q706? NO TROUBLE IN Q706 YES CHECK B+ VOLTAGE (49V)? NO TROUBLE IN 50V LINE YES CHECK T701(FBT) PIN 2 (31KHZ, 60V)? NO TROUBLE IN Q719, Q720, D710 YES CHECK Q705 COLLECTOR WAVEFORM? NO TROUBLE IN Q705 0V T YES TROUBLE IN T701, P701 5. TROUBLE IN H-LINEARITY UNBALANCED OF H-LIN. CHECK IC401 PIN 22, 24 ? NO TROUBLE IN IC401 (MICOM) YES CHECK Q711, Q713 Q714, Q716? NO TROUBLE IN Q711 ~ Q716 YES CHECK L703, D719? NO TROUBLE IN L703, D719 YES Cs SIGNAL TABLE TROUBLE IN C722, C723, C729 HORIZONTAL FREQUENCY(fH) C1 L H L H C2 - C3 L L H H 30K 36K 40K 50K ~ ~ ~ ~ 35.9K 39.9K 49.9K 53.9K 6. NO VERTICAL DEFLECTION NO V-DEFLECTION (ONE HORIZONTAL LINE) CHECK IC601 PIN 3 (15V)? NO TROUBLE IN R603 15V LINE YES CHECK IC601 PIN 7 (40V)? NO TROUBLE IN HIGH-VOLTAGE OUT CIRCUIT(FBT), D721, R606 YES CHECK IC701 PIN 12, 13? NO TROUBLE IN IC701 3V YES TROUBLE IN IC601, V-CIRCUIT 7. TROUBLE IN OSD NO OSD (ENTER BUTTON MUST BE PRESSED.) CHECK IC301 B+ ? NO TROUBLE IN 5V LINE DC 5V YES CHECK IC301 PIN 5, 10 WAVEFORM? Pin 10 5V NO TROUBLE IN IC601 PIN8 (V-FBP), T701 40V LINE (H-FBP) Pin 5 YES CHECK IC301 PIN 12 WAVEFORM ? H+V 5V NO TROUBLE IN IC302, IC301 YES CHECK IC301 PIN 13, 14, 15 ? H+V 5V NO TROUBLE IN IC301, IC302 YES TROUBLE IN OSD PERIPHERAL CIRCUIT 8. TROUBLE IN DPM OFF MODE FAILURE (NO OFF MODE.) CHECK IC401 (MICOM) PIN 1, 42 (H/V INPUT) SIGNAL? NO INPUT H/V SYNC SIGNAL CHECK PC, (PC IS NOT GOING INTO DPM OFF MODE) YES H/V SYNC CHECK IC401 PIN 6 WAVEFORM? 5V NO TROUBLE IN X401 YES 24MHz CHECK IC401 (MICOM) PIN 4? SEE DPM TABLE YES NO (DPMF: 0V) TROUBLE IN IC401 (MICOM) CHECK B+ LINE (6.3V,15V, 80V) ? NO T

File name Compaq MV540 CQ550F CO1075 wiring.pdf

WIRING DIAGRAM MIC P201 P402 P405 S S+ P902 P702 T2 AC Socket P202 T3 Signal Cable P302 G2 P301 FBT